Jin Huang Yiying Tong Kun Zhou Hujun Bao Mathieu Desbrun 983-992 2011 17 IEEE Trans. Vis. Comput. Graph. 7 http://doi.ieeecomputersociety.org/10.1109/TVCG.2010.109 db/journals/tvcg/tvcg17.html#HuangTZBD11